663
FZUS63 KMKX 071937
GLFLM

OPEN LAKE FORECAST for Lake Michigan
National Weather Service Milwaukee/Sullivan WI
237 PM CDT Sat Jun 7 2025

FOR WATERS BEYOND FIVE NAUTICAL MILES OF SHORE ON Lake Michigan.

Waves are provided as a range of significant wave heights, which
is the average of the highest 1/3 of the wave, along with the
average height of the highest 10% of the waves which will
occasionally be encountered.

.SYNOPSIS...

High pressure of 30.0 inches over the Great Lakes region will
continue east through this weekend in advance of an approaching low.
Winds will remain light and variable today, becoming southerly and
increasing a little as the low approaches Sunday. Broad low pressure
of 29.5 inches will then gradually move eastward from the Northern
Plains through the Great Lakes Region Sunday and Monday. Showers and
storms are expected Sunday afternoon and evening as a cold front
crosses the lake. Winds veer southwest and decelerate behind it.
Additional chances for showers and storms on Monday, with modest
southwest to west winds.

LMZ261-362-364-366-563-565-567-868-080315-
Lake Michigan from Seul Choix Point to Rock Island Passage 5 NM
offshore to Mid Lake-
Lake Michigan South of a line from Seul Choix Point to the
Mackinac Bridge and north of a line from Charlevoix MI to South
Fox Island 5 NM offshore-
Lake Michigan from Charlevoix to Point Betsie MI 5 NM offshore to
Mid Lake-
Lake Michigan from Point Betsie to Manistee MI 5 NM offshore to
Mid Lake-
Lake Michigan from Rock Island Passage to Sturgeon Bay WI-
Lake Michigan from Sturgeon Bay to Two Rivers WI 5 NM offshore to
Mid Lake-
Lake Michigan from Two Rivers to Sheboygan WI 5 NM offshore to
Mid Lake-
Lake Michigan from Pentwater to Manistee MI 5 NM offshore to Mid
Lake-
237 PM CDT Sat Jun 7 2025

SHEBOYGAN WI TO PENTWATER MI NORTH...

.TONIGHT...Northeast winds 10 to 15 kt becoming southeast 10 to
20 kt. Waves 1 to 2 ft.
.SUNDAY...Southeast winds 10 to 20 kt veering to southwest 15 to
25 kt. Showers likely with a chance of thunderstorms in the
afternoon. Waves 1 to 3 ft.
.SUNDAY NIGHT...South winds 15 to 25 kt becoming southwest 10 to
15 kt. Chance of showers and thunderstorms in the evening. Waves
1 to 3 ft.
.MONDAY...South winds 10 to 15 kt becoming southwest 10 to 20 kt.
Waves 1 to 3 ft.
.MONDAY NIGHT...Southwest winds 10 to 15 kt increasing to 10 to
20 kt. Chance of thunderstorms in the evening. Waves 1 to 3 ft.
.TUESDAY...West winds 10 to 15 kt becoming southwest. Waves 1 to
3 ft.
.TUESDAY NIGHT...Southwest winds 10 to 15 kt increasing to 10 to
20 kt. Waves 1 to 2 ft.
.WEDNESDAY...Southwest winds 10 to 20 kt. Waves 1 to 3 ft.
.THURSDAY...Southeast winds 10 to 15 kt becoming east. Chance of
showers and thunderstorms. Waves 1 to 3 ft.

$$

LMZ080-669-671-673-675-777-779-870-872-874-876-878-080315-
Lake Michigan from Michigan City IN to St. Joseph MI 5 NM
offshore to Mid Lake-
Lake Michigan from Sheboygan to Port Washington WI 5 NM offshore
to Mid Lake-
Lake Michigan from Port Washington to North Point Light WI 5 NM
offshore to Mid Lake-
Lake Michigan from North Point Light to Wind Point WI 5 NM
offshore to Mid Lake-
Lake Michigan from Wind Point WI to Winthrop Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Winthrop Harbor to Wilmette Harbor IL 5 NM
offshore to Mid Lake-
Lake Michigan from Wilmette Harbor IL to Michigan City IN 5 NM
offshore to Mid Lake-
Lake Michigan from Whitehall to Pentwater MI 5 NM offshore to Mid
Lake-
Lake Michigan from Grand Haven to Whitehall MI 5 NM offshore to
Mid Lake-
Lake Michigan from Holland to Grand Haven MI 5 NM offshore to Mid
Lake-
Lake Michigan from South Haven to Holland MI 5 NM offshore to Mid
Lake-
Lake Michigan from St. Joseph to South Haven MI 5 NM offshore to
Mid Lake-
237 PM CDT Sat Jun 7 2025

SHEBOYGAN WI TO PENTWATER MI SOUTH...

.TONIGHT...Northeast winds 10 to 20 kt becoming east. Slight
chance of showers this evening, then chance of showers overnight.
Waves 1 to 2 ft.
.SUNDAY...East winds 10 to 15 kt veering to south 10 to 20 kt.
Chance of showers and thunderstorms in the afternoon. Waves 1 to
3 ft.
.SUNDAY NIGHT...West winds 10 to 20 kt becoming southwest 10 to
15 kt. Chance of showers and thunderstorms in the evening. Waves
1 to 3 ft.
.MONDAY...Southwest winds 10 to 20 kt. Showers likely with a
chance of thunderstorms in the afternoon. Waves 1 to 3 ft.
.MONDAY NIGHT...West winds 10 to 15 kt increasing to 10 to 20 kt.
Chance of showers and thunderstorms in the evening. Waves 1 to
3 ft.
.TUESDAY...West winds 10 to 20 kt becoming southwest 10 to 15 kt.
Waves 1 to 3 ft.
.TUESDAY NIGHT...Southwest winds 10 to 15 kt. Waves 1 to 2 ft.
.WEDNESDAY...Southwest winds 10 to 15 kt increasing to 10 to
20 kt. Waves 1 to 3 ft.
.THURSDAY...Southeast winds 10 to 15 kt becoming east 10 to
20 kt. Chance of showers and thunderstorms. Waves 1 to 3 ft.

$$

LMZ761-080315-
MAFOR 0722/
MICHIGAN NORTH 11110 11210 11220 12320 11330 11430 11526. A
chance of thunderstorms Sunday afternoon. Waves 2 feet or less.

MICHIGAN SOUTH 11110 11120 11110 12220 13420. A chance of showers
overnight. A chance of showers and thunderstorms Sunday
afternoon. Waves 2 feet or less.

$$


Sheppard

Experimental modernized open lake forecast is available online at
weather.gov/mkx/glftable

Graphical marine forecasts are available online at:
weather.gov/greatlakes